NSO Level 1- Science Olympiad (SOF) Class 8: Questions 838 - 842 of 1076

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Question number: 838

» Friction

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MCQ▾

Question

Friction is caused by this property of two surfaces in contact

Choices

Choice (4)Response

a.

Height difference

b.

Regularity

c.

Irregularity

d.

Similarity

Question number: 839

» Friction

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MCQ▾

Question

The weighing device used for measuring the force acting on an object is

Choices

Choice (4)Response

a.

Weighing balance

b.

Digital balance

c.

Spring balance

d.

Common balance

Question number: 840

» Friction

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MCQ▾

Question

Het and Kaushal want to conduct a race on turning top. Het selected a cement floor and Kaushal selected a polished marble floor. Het’s top started turning faster than Kaushal’s but Kaushal was declared as the winner as his top lasted long. The reason would be

Choices

Choice (4)Response

a.

Kaushal

b.

Het

c.

None of the above

d.

Question does not provide sufficient data or is vague

Question number: 841

» Force and Pressure

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MCQ▾

Question

The effect of a contact force on an object may

Choices

Choice (4)Response

a.

Stop the motion

b.

Trigger the motion

c.

Change the direction

d.

All a. , b. and c. are correct

Question number: 842

» Friction

Edit
MCQ▾

Question

This figure demonstrates the fact that

Image shown Friction produces heat

Image Shown Friction Produces Heat

Choices

Choice (4)Response

a.

Friction produces sound

b.

Friction produces heat

c.

Friction produces light

d.

All of the above

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